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Old Processor Electrical Specifications

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All of the information contained on this page came directly from the various datasheets provided online. Since not all of the pertinent information is clearly spelled out in the datasheets, some of the numbers were calculated using formulas found in the datasheets. Where these calculations are used is clearly marked and the formulas used are also provided.

Please note that the 'Max. Case Temp.' is the maximum temperature allowable as measured on the exterior of the processor package in the middle directly above the chip die (under the heatsink). It is not the maximum internal ambient temperature of the system enclosure. The term 'case' refers to the processor's package, not the system case. For that, AMD suggests:

"The environmental specifications on most systems guarantee operation for external ambients up to 35°C. Most PC chassis/system boxes result in a 10°C increase in temperature over the external ambient temperature. In general, this means the thermal solution should be designed to allow an internal ambient (T_A) of 45°C."

The other chips follow this rule similarly. The Pentium II chip, for example, allows a typical 35°C~40°C ambient temperature and a 45°C upper ambient temperature limit. Although the internal ambient temperature of the system enclosure isn't nearly as important as the temperature of the processor package closest to the CPU die. Intel states:

"An ambient temperature is not specified for the Pentium II processor. The only restriction is that Tcover (cover temperature) and Tplate (thermal plate temperature) be met."

I added the Pentium II temperature Tplate, which is measured under the heatsink directly above the processor core. Tcover, on the other hand, is the measurement on the SEC cartridge on the opposite side from the heatsink.

AMD

AMD 5x86-133 P75
5x86 (X5)	Voltage	Abs. Max. Voltage	Typical Amperage	Maximum Amperage	Maximum Power Dissipation	Max. Case Temp.
X5-133ADW (168-pin PGA)	3.45V (3.0V~3.6V)	?V	0.825A	0.931A	3.7W	55° C
X5-133ADZ (168-pin PGA)	3.45V (3.0V~3.6V)	?V	0.825A	0.931A	3.7W	85° C
X5-133SFZ (208-pin SQFP)	3.3V (3.0V~3.6V)	?V	0.825A	0.931A	3.7W	85° C
X5-133SDZ (208-pin SQFP)	3.45V (3.0V~3.6V)	?V	0.825A	0.931A	3.7W	85° C

5x86 Notes:

Maximum power dissipation was calculated from P_max=(T_case-T_ambient)/(O_ja-O_jc). Where O_ja (theta) is junction-to-ambient thermal resistance and O_jc is junction-to-case thermal resistance in °C/W. T_ambient was measured at 3.3V and 0.931A.

AMD K5
K5 (SSA5)	Voltage	Abs. Max. Voltage	Typical Amperage	Maximum Amperage	Maximum Power Dissipation	Max. Case Temp.
K5-PR75ABR (75MHz)	3.52V (3.45V~3.60V)	3.82V	2.7A	3.3A	11.6W	70° C
K5-PR90ABQ (90MHz)	3.52V (3.45V~3.60V)	3.82V	3.24A	3.96A	13.9W	60° C
K5-PR100ABQ (100MHz)	3.52V (3.45V~3.60V)	3.82V	3.6A	4.4A	15.4W	60° C
K5 (5k86)	Voltage	Abs. Max. Voltage	Typical Amperage	Maximum Amperage	Maximum Power Dissipation	Max. Case Temp.
K5-PR120ABR (90MHz)	3.52V (3.45V~3.60V)	3.82V	2.7A	3.51A	12.3W	70° C
K5-PR133ABQ (100MHz)	3.52V (3.45V~3.60V)	3.82V	3.0A	3.9A	13.7W	60° C
K5-PR133ABR (100MHz)	3.52V (3.45V~3.60V)	3.82V	3.0A	3.9A	13.7W	70° C
K5-PR150ABX (105MHz)	3.52V (3.45V~3.60V)	3.82V	?A	?A	?W	65° C
K5-PR166ABX (116MHz)	3.52V (3.45V~3.60V)	3.82V	3.5A	4.524A	16.0W	65° C

K5 Notes:

The Absolute Maximum Voltage is the highest voltage the chips can take for a short period of time. Extended use of the processor at or near these voltages will cause permanent damage to the chip. Reliable operation of the chip outside its nominal voltage range is not guaranteed.
Maximum power dissipation was calculated from P_max=(T_case-T_ambient)/O_ca. Where O_ca (theta) is case-to-ambient thermal resistance in °C/W. T_ambient was measured at typical voltages and maximum amperages.

AMD K6
K6 (model 6)	Core Voltage	Core Voltage Upper Limit	I/O Voltage	I/O Voltage Upper Limit	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
K6-166ALR	2.9V (2.755V~3.045V)	3.5V	3.3V (3.135V~3.6V)	4.0V	6.25A	0.48A	10.3W	17.2W	70° C
K6-200ALR	2.9V (2.755V~3.045V)	3.5V	3.3V (3.135V~3.6V)	4.0V	7.5A	0.5A	12W	20W	70° C
K6-233ANR (3.2v CORE)	3.2V (3.1V~3.3V)	3.5V	3.3V (3.135V~3.6V)	4.0V	9.5A	0.52A	17W	28.3W	70° C
K6-233APR (3.3v CORE)	3.3V (3.2V~3.4V)	3.5V	3.3V (3.135V~3.6V)	4.0V	9.75A	0.52A	18.2W	30.2W	70° C
K6 (Little Foot)	Core Voltage	Core Voltage Upper Limit	I/O Voltage	I/O Voltage Upper Limit	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
K6-200AFR (2.2v CORE)	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	5.95A	0.5A	7.5W	12.45W	70° C
K6-233AFR (2.2v CORE)	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	6.5A	0.52A	8.1W	13.5W	70° C
K6-266AFR (2.2v CORE)	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	7.05A	0.54A	8.75W	14.55W	70° C
K6-300AFR (2.2v CORE)	2.2V (2.1V~2.3V)	2.5V	3.45V (3.135V~3.6V)	3.6V	7.49A	0.56A	9.25W	15.4W	70° C
K6-2 (Chompers)	Core Voltage	Core Voltage Upper Limit	I/O Voltage	I/O Voltage Upper Limit	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
K6-2-233AFR	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	6.5A	0.52A	8.1W	13.5W	70° C
K6-2-266AFR	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	7.35A	0.54A	8.85W	14.7W	70° C
K6-2-300AFR	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	8.45A	0.56A	10.35W	17.2W	70° C
K6-2-333AFR	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	9.4A	0.58A	11.4W	19W	70° C
K6-2-350AFR	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	9.85A	0.6A	11.98W	19.95W	70° C
K6-2-366AFR	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	10.3A	0.6A	12.48W	20.8W	70° C
K6-2-380AFR	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	10.7A	0.61A	12.95W	21.6W	70° C
K6-2-400AFQ	2.2V (2.1V~2.3V)	2.5V	3.3V (3.135V~3.6V)	3.6V	11.25A	0.62A	13.65W	22.7W	60° C
K6-2-400AFR	2.2V (2.1V~2.3V)	2.4V	3.3V (3.135V~3.6V)	3.6V	10A	0.62A	10.15W	16.9W	70° C
K6-2-450AFX	2.2V (2.1V~2.3V)	2.4V	3.3V (3.135V~3.6V)	3.6V	11.25A	0.66A	11.3W	18.8W	65° C
K6-2-450AHX	2.4V (2.3V~2.5V)	2.6V	3.3V (3.135V~3.6V)	3.6V	12.5A	0.66A	17.05W	28.4W	65° C
K6-2-475AFX	2.2V (2.1V~2.3V)	2.4V	3.3V (3.135V~3.6V)	3.6V	11.9A	0.67A	11.9W	19.8W	65° C
K6-2-475AHX	2.4V (2.3V~2.5V)	2.6V	3.3V (3.135V~3.6V)	3.6V	13A	0.67A	17.75W	29.6W	65° C
K6-2-500AFX	2.2V (2.1V~2.3V)	2.4V	3.3V (3.135V~3.6V)	3.6V	12.5A	0.69A	12.45W	20.75W	65° C
K6-2-533AFX	2.2V (2.1V~2.3V)	2.4V	3.3V (3.135V~3.6V)	3.6V	12.5A	0.69A	12.45W	20.75W	65° C
K6-2-550AGR	2.3V (2.2V~2.4V)	2.5V	3.3V (3.135V~3.6V)	3.6V	13A	0.69A	15W	25W	70° C
K6-III (Sharptooth)	Core Voltage	Core Voltage Upper Limit	I/O Voltage	I/O Voltage Upper Limit	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
K6-III-400AFR	2.2V (2.1V~2.3V)	2.4V	3.3V (3.135V~3.6V)	3.6V	10.8A	0.62A	10.85W	18.1W	70° C
K6-III-400AHX	2.4V (2.3V~2.5V)	2.6V	3.3V (3.135V~3.6V)	3.6V	12.4A	0.62A	16.1W	26.8W	65° C
K6-III-450AFX	2.2V (2.1V~2.3V)	2.4V	3.3V (3.135V~3.6V)	3.6V	12.15A	0.66A	12.15W	20.2W	65° C
K6-III-450AHX	2.4V (2.3V~2.5V)	2.6V	3.3V (3.135V~3.6V)	3.6V	13.5A	0.66A	17.7W	29.5W	65° C

K6 Notes:

The 2.2v CORE K6 chip is the .25µ Model 7 K6.
Unlike most of the other chips listed here, the AMD K6, K6-2, and K6-III do not list an Absolute Maximum Voltage. Instead, they have a recommended upper limit for reliable operation of 3.5v/4.0v (2.5v/3.6v for Model 7 and Model 8; 2.6v/3.6v for Model 9). However, operation of the chip outside its nominal voltage range will still void the warranty.
Maximum amperages for the 166MHz and 200MHz chips were measured at 3.045v/3.6v.
Maximum amperages for the 233MHz (3.2v version) chip were measured at 3.3v/3.6v.
Maximum amperages for the 233MHz (3.3v version) chip were measured at 3.4v/3.6v.
Maximum amperages for Model 7 and Model 8 chips were measured at 2.3v/3.6v.
Maximum amperages for Model 9 chip were measured at 2.5v/3.6v.
Typical power dissipation was measured at normal operating voltages and under normal system operation (typical instruction sequences).
Maximum power dissipation was measured at normal operating voltages and under worst-case instruction sequences.
The specs listed in the datasheet for the 533MHz K6-2 part are exactly the same as the 500MHz part.

AMD mobile K6
mobile K6 (Little Foot)	Core Voltage	Core Voltage Upper Limit	I/O Voltage	I/O Voltage Upper Limit	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
mK6-233ACZ	2.0V (1.9V~2.1V)	2.5V	3.3V (3.135V~3.6V)	3.6V	4.65A	0.52A	5.4W	9W	85° C
mK6-266ACZ	2.0V (1.9V~2.1V)	2.5V	3.3V (3.135V~3.6V)	3.6V	5.1A	0.54A	5.9W	9.8W	85° C
mK6-300ADZ	2.1V (2.0V~2.2V)	2.5V	3.3V (3.135V~3.6V)	3.6V	5.5A	0.56A	6.6W	11W	85° C
mobile K6-2 (Chompers)	Core Voltage	Core Voltage Upper Limit	I/O Voltage	I/O Voltage Upper Limit	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
mK6-2-266ANZ	1.8V (1.7V~1.9V)	2.5V	3.3V (3.135V~3.6V)	3.6V	5.05A	0.54A	8W	9W	85° C
mK6-2-300ANZ	1.8V (1.7V~1.9V)	2.5V	3.3V (3.135V~3.6V)	3.6V	5.5A	0.56A	8.85W	10W	85° C
mK6-2-333ANZ	1.8V (1.7V~1.9V)	2.5V	3.3V (3.135V~3.6V)	3.6V	6.25A	0.58A	9.65W	11W	85° C
mK6-2-P-350AFK	2.2V (2.1V~2.3V)	2.6V	3.3V (3.135V~3.6V)	3.6V	8A	0.6A	12.6W	16W	80° C
mK6-2-P-366AFK	2.2V (2.1V~2.3V)	2.6V	3.3V (3.135V~3.6V)	3.6V	8A	0.6A	12.6W	16W	80° C
mK6-2-P-380AFK	2.2V (2.1V~2.3V)	2.6V	3.3V (3.135V~3.6V)	3.6V	8A	0.61A	12.6W	16W	80° C
mK6-2-P-400AFK	2.2V (2.1V~2.3V)	2.6V	3.3V (3.135V~3.6V)	3.6V	8A	0.62A	12.6W	16W	80° C
mK6-2-P-400ACK	2.0V (1.9V~2.1V)	2.4V	3.3V (3.135V~3.6V)	3.6V	8A	0.62A	12.6W	16W	80° C
mK6-2-P-433ADK	2.1V (2.0V~2.2V)	2.4V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.64A	12.6W	16W	80° C
mK6-2-P-450ADK	2.1V (2.0V~2.2V)	2.4V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.66A	12.6W	16W	80° C
mK6-2-P-475ACK	2.0V (1.9V~2.1V)	2.4V	3.3V (3.135V~3.6V)	3.6V	8A	0.67A	12.6W	16W	80° C
mobile K6-III (Sharptooth)	Core Voltage	Core Voltage Upper Limit	I/O Voltage	I/O Voltage Upper Limit	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
mK6-III-P-350AFK	2.2V (2.1V~2.3V)	2.6V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.6A	12.6W	16W	80° C
mK6-III-P-366AFK	2.2V (2.1V~2.3V)	2.6V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.6A	12.6W	16W	80° C
mK6-III-P-380AFK	2.2V (2.1V~2.3V)	2.6V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.61A	12.6W	16W	80° C
mK6-III-P-400ACK	2.0V (1.9V~2.1V)	2.4V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.62A	12.6W	16W	80° C
mK6-III-P-433ACK	2.0V (1.9V~2.1V)	2.4V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.64A	12.6W	16W	80° C
mK6-III-P-450ACK	2.0V (1.9V~2.1V)	2.4V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.66A	12.6W	16W	80° C
mobile K6-2+ ( ? )	Core Voltage	Core Voltage Upper Limit	I/O Voltage	I/O Voltage Upper Limit	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
mK6-2+-450ACZ	2.0V (1.9V~2.1V)	2.2V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.66A	12.6W	16W	85° C
mK6-2+-475ACZ	2.0V (1.9V~2.1V)	2.2V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.67A	12.6W	16W	85° C
mK6-2+-500ACZ	2.0V (1.9V~2.1V)	2.2V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.68A	12.6W	16W	85° C
mK6-2+-533ACZ	2.0V (1.9V~2.1V)	2.2V	3.3V (3.135V~3.6V)	3.6V	9.5A	0.68A	14.2W	18W	85° C
mK6-2+-550ACZ	2.0V (1.9V~2.1V)	2.2V	3.3V (3.135V~3.6V)	3.6V	9.5A	0.69A	14.2W	18W	85° C
mobile K6-III+ ( ? )	Core Voltage	Core Voltage Upper Limit	I/O Voltage	I/O Voltage Upper Limit	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
mK6-III+-450ACZ	2.0V (1.9V~2.1V)	2.2V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.66A	12.6W	16W	85° C
mK6-III+-475ACZ	2.0V (1.9V~2.1V)	2.2V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.67A	12.6W	16W	85° C
mK6-III+-500ACZ	2.0V (1.9V~2.1V)	2.2V	3.3V (3.135V~3.6V)	3.6V	8.5A	0.68A	12.6W	16W	85° C

Mobile K6 Notes:

The mobile 433MHz K6-2-P and K6-III-P run at a very unusual bus speed of 96.2MHz with a 4.5x multiplier.
Unlike most of the other chips listed here, the AMD K6, K6-2, and K6-III do not list an Absolute Maximum Voltage. Instead, they have a recommended upper limit for reliable operation of 2.5v/3.6v. However, operation of the chip outside its nominal voltage range will still void the warranty.
Maximum amperages for the mobile K6 and K6-2 were measured at each chip's maximum voltage.
Typical power dissipation was measured at normal operating voltages and under normal system operation (typical instruction sequences).
Maximum power dissipation was measured at normal operating voltages and under worst-case instruction sequences.
All values apply to both the PGA (pin grid array) and BGA (ball grid array) mobile chips. PGA chips come with the 'ANZ' designation; BGA come with 'BNZ'. The mobile K6-2-P and K6-III-P only come in 321-pin PGA form.
Maximum amperages for the mobile K6-2-P and K6-III are the maximum a power supply will have to deliver to the chip.
Application Power (listed as Typical Power Dissipation in the above chart) for the mobile K6-2-P, K6-III-P, K6-2+, and K6-III+ is the average power dissipated when executing instructions sequences under normal system operation (2.2v/3.3v or 2.0v/3.3v).
Design Power (listed as Max Power Dissipation in the above chart) for the mobile K6-2-P, K6-III-P, K6-2+, and K6-III+ is the maximum sustained power dissipated when executing instructions sequences under normal system operation (2.2v/3.3v or 2.0v/3.3v).

AMD Athlon
Athlon (K7) Slot A	Core Voltage	Core Voltage Upper Limit	L2 Voltage	L2 Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
K7-500	1.6V (1.5V~1.7V)	2.1V	3.3V (3.15V~3.45V)	4.0V	27.4A	38W	42W	70° C
K7-550	1.6V (1.5V~1.7V)	2.1V	3.3V (3.15V~3.45V)	4.0V	30.1A	41W	46W	70° C
K7-600	1.6V (1.5V~1.7V)	2.1V	3.3V (3.15V~3.45V)	4.0V	32.9A	45W	50W	70° C
K7-650	1.6V (1.5V~1.7V)	2.1V	3.3V (3.15V~3.45V)	4.0V	35.5A	48W	54W	70° C
K7-700	1.6V (1.5V~1.7V)	2.1V	3.3V (3.15V~3.45V)	4.0V	33.1A	45W	50W	70° C
Athlon (K75) Slot A	Core Voltage	Core Voltage Upper Limit	L2 Voltage	L2 Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
K75-550	1.6V (1.5V~1.7V)	2.1V	3.3V (3.15V~3.45V)	4.0V	20A	28W	31W	70° C
K75-600	1.6V (1.5V~1.7V)	2.1V	3.3V (3.15V~3.45V)	4.0V	21.5A	30W	34W	70° C
K75-650	1.6V (1.5V~1.7V)	2.1V	3.3V (3.15V~3.45V)	4.0V	22.9A	32W	36W	70° C
K75-700	1.6V (1.5V~1.7V)	2.1V	3.3V (3.15V~3.45V)	4.0V	24.4A	34W	39W	70° C
K75-750	1.6V (1.5V~1.7V)	2.1V	3.3V (3.15V~3.45V)	4.0V	25.8A	35W	40W	70° C
K75-800	1.7V (1.6V~1.8V)	2.1V	3.3V (3.15V~3.45V)	4.0V	29.5A	43W	48W	70° C
K75-850	1.7V (1.6V~1.8V)	2.1V	3.3V (3.15V~3.45V)	4.0V	30A	45W	50W	70° C
K75-900	1.8V (1.7V~1.9V)	2.1V	3.3V (3.15V~3.45V)	4.0V	34A	53W	60W	70° C
K75-950	1.8V (1.7V~1.9V)	2.1V	3.3V (3.15V~3.45V)	4.0V	35A	55W	62W	70° C
K75-1G	1.8V (1.7V~1.9V)	2.1V	3.3V (3.15V~3.45V)	4.0V	37A	60W	65W	70° C
Athlon (Thunderbird) Slot A	Core Voltage	Core Voltage Upper Limit	L2 Voltage	L2 Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Tbird-650	1.7V (1.6V~1.8V)	2.1V	--	--	23.8A	32.4W	36.1W	70° C
Tbird-700	1.7V (1.6V~1.8V)	2.1V	--	--	25.2A	34.4W	38.3W	70° C
Tbird-750	1.7V (1.6V~1.8V)	2.1V	--	--	26.6A	36.3W	40.4W	70° C
Tbird-800	1.7V (1.6V~1.8V)	2.1V	--	--	28A	38.3W	42.6W	70° C
Tbird-850	1.7V (1.6V~1.8V)	2.1V	--	--	29.4A	40.2W	44.8W	70° C
Tbird-900	1.75V (1.65V~1.85V)	2.1V	--	--	31.7A	44.6W	49.7W	70° C
Tbird-950	1.75V (1.65V~1.85V)	2.1V	--	--	33.2A	46.7W	52W	70° C
Tbird-1G	1.75V (1.65V~1.85V)	2.1V	--	--	34.6A	48.7W	54.3W	70° C
Athlon (Thunderbird) Socket A	Core Voltage	Core Voltage Upper Limit	L2 Voltage	L2 Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Tbird-650	1.7V (1.6V~1.8V)	2.1V	--	--	23.8A	32.4W	36.1W	90° C
Tbird-650	1.75V (1.65V~1.85V)	2.1V	--	--	22A	34W	38W	90° C
Tbird-700	1.7V (1.6V~1.8V)	2.1V	--	--	25.2A	34.4W	38.3W	90° C
Tbird-700	1.75V (1.65V~1.85V)	2.1V	--	--	23A	36W	40W	90° C
Tbird-750	1.7V (1.6V~1.8V)	2.1V	--	--	26.6A	36.3W	40.4W	90° C
Tbird-750	1.75V (1.65V~1.85V)	2.1V	--	--	25A	38W	43W	90° C
Tbird-800	1.7V (1.6V~1.8V)	2.1V	--	--	28A	38.3W	42.6W	90° C
Tbird-800	1.75V (1.65V~1.85V)	2.1V	--	--	26A	40W	45W	90° C
Tbird-850	1.7V (1.6V~1.8V)	2.1V	--	--	29.4A	40.2W	44.8W	90° C
Tbird-850	1.75V (1.65V~1.85V)	2.1V	--	--	27A	42W	47W	90° C
Tbird-900	1.75V (1.65V~1.85V)	2.1V	--	--	31.7A	44.6W	49.7W	90° C
Tbird-900	1.75V (1.65V~1.85V)	2.1V	--	--	29A	44W	50W	90° C
Tbird-950	1.75V (1.65V~1.85V)	2.1V	--	--	33.2A	46.7W	52W	90° C
Tbird-950	1.75V (1.65V~1.85V)	2.1V	--	--	30A	47W	52W	90° C
Tbird-1G	1.75V (1.65V~1.85V)	2.1V	--	--	34.6A	48.7W	54.3W	90° C
Tbird-1G	1.75V (1.65V~1.85V)	2.1V	--	--	31A	49W	54W	90° C
Tbird-1.1G	1.75V (1.65V~1.85V)	2.1V	--	--	35.2A	49.5W	55.1W	95° C
Tbird-1.1G	1.75V (1.65V~1.85V)	2.1V	--	--	34A	54W	60W	95° C
Tbird-1.13G	1.75V (1.65V~1.85V)	2.1V	--	--	36A	56W	63W	95° C
Tbird-1.2G	1.75V (1.65V~1.85V)	2.1V	--	--	38A	59W	66W	95° C
Tbird-1.3G	1.75V (1.65V~1.85V)	2.1V	--	--	39A	61W	68W	95° C
Tbird-1.33G	1.75V (1.65V~1.85V)	2.1V	--	--	40A	63W	70W	95° C
Tbird-1.4G	1.75V (1.65V~1.85V)	2.1V	--	--	42A	65W	72W	95° C

AMD Athlon MP
Athlon MP (Palomino) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Athlon MP-1.0G	1.75V (1.7V~1.8V)	2.1V	26.3A	41.3W	46.1W	95° C
Athlon MP-1.2G	1.75V (1.7V~1.8V)	2.1V	31.3A	49.1W	54.7W	95° C
Athlon MP-1500+ (1.33GHz)	1.75V (1.7V~1.8V)	2.1V	34.3A	53.8W	60W	95° C
Athlon MP-1600+ (1.4GHz)	1.75V (1.7V~1.8V)	2.1V	35.9A	56.3W	62.8W	95° C
Athlon MP-1800+ (1.53GHz)	1.75V (1.7V~1.8V)	2.1V	37.7A	58.9W	66W	95° C
Athlon MP-1900+ (1.6GHz)	1.75V (1.7V~1.8V)	2.1V	37.7A	58.9W	66W	95° C
Athlon MP-2000+ (1.67GHz)	1.75V (1.7V~1.8V)	2.1V	37.7A	58.9W	66W	95° C
Athlon MP-2100+ (1.73GHz)	1.75V (1.7V~1.8V)	2.1V	37.7A	58.9W	66W	95° C
Athlon MP (Thoroughbred) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Athlon MP-2000+ (6-8-1 - 1.67GHz)	1.6V (?V~?V)	2.0V	36.4A	52.8W	58.2W	90° C
Athlon MP-2200+ (6-8-1 - 1.8GHz)	1.65V (?V~?V)	2.0V	36.4A	50.7W	60W	90° C
Athlon MP-2400+ (6-8-1 - 2.0GHz)	1.65V (?V~?V)	2.0V	36.4A	54.6W	60W	90° C
Athlon MP-2600+ (6-8-1 - 2.13GHz)	1.65V (?V~?V)	2.0V	36.4A	56.6W	60W	90° C
Athlon MP (Barton MP) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Athlon MP-2800+ (2.13GHz)	1.6V (?V~?V)	2.0V	37.5A	47.2W	60W	90° C

AMD Athlon XP
Athlon XP (Palomino) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Athlon XP-1500+ (1.33GHz)	1.75V (1.7V~1.8V)	2.1V	34.3A	53.8W	60W	90° C
Athlon XP-1600+ (1.4GHz)	1.75V (1.7V~1.8V)	2.1V	35.9A	56.3W	62.8W	90° C
Athlon XP-1700+ (1.46GHz)	1.75V (1.7V~1.8V)	2.1V	36.6A	57.4W	64W	90° C
Athlon XP-1800+ (1.53GHz)	1.75V (1.7V~1.8V)	2.1V	37.7A	59.2W	66W	90° C
Athlon XP-1900+ (1.6GHz)	1.75V (1.7V~1.8V)	2.1V	38.9A	60.7W	68W	90° C
Athlon XP-2000+ (1.66GHz)	1.75V (1.7V~1.8V)	2.1V	40A	62.5W	70W	90° C
Athlon XP-2100+ (1.73GHz)	1.75V (1.7V~1.8V)	2.1V	41.1A	64.3W	72W	90° C
Athlon XP (Thoroughbred) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Athlon XP-1600+ (6-8-1 - 1.4GHz)	1.6V (?V~?V)	2.0V	30.3A	44W	48.5W	90° C
Athlon XP-1700+ (6-8-0 - 1.46GHz)	1.5V (?V~?V)	2.0V	32.9A	44.9W	49.4W	90° C
Athlon XP-1700+ (6-8-1 - 1.46GHz)	1.5V (?V~?V)	2.0V	32.9A	44.9W	49.4W	90° C
Athlon XP-1700+ (6-8-1 - 1.46GHz)	1.6V (?V~?V)	2.0V	30.9A	44.9W	49.4W	90° C
Athlon XP-1800+ (6-8-0 - 1.53GHz)	1.5V (?V~?V)	2.0V	34A	46.3W	51W	90° C
Athlon XP-1800+ (6-8-1 - 1.53GHz)	1.5V (?V~?V)	2.0V	34A	46.3W	51W	90° C
Athlon XP-1800+ (6-8-1 - 1.53GHz)	1.6V (?V~?V)	2.0V	31.9A	46.3W	51W	90° C
Athlon XP-1900+ (6-8-0 - 1.6GHz)	1.5V (?V~?V)	2.0V	35A	47.7W	52.5W	90° C
Athlon XP-2000+ (6-8-0 - 1.66GHz)	1.6V (?V~?V)	2.0V	37.7A	54.7W	60.3W	90° C
Athlon XP-2000+ (6-8-0 - 1.66GHz)	1.65V (?V~?V)	2.0V	36.5A	54.7W	60.3W	90° C
Athlon XP-2000+ (6-8-1 - 1.66GHz)	1.6V (?V~?V)	2.0V	37.7A	54.7W	60.3W	90° C
Athlon XP-2100+ (6-8-0 - 1.73GHz)	1.6V (?V~?V)	2.0V	38.8A	56.4W	62.1W	90° C
Athlon XP-2100+ (6-8-1 - 1.73GHz)	1.6V (?V~?V)	2.0V	34.9A	56.4W	62.1W	90° C
Athlon XP-2200+ (6-8-0 - 1.8GHz)	1.65V (?V~?V)	2.0V	41.2A	61.7W	67.9W	85° C
Athlon XP-2200+ (6-8-1 - 1.8GHz)	1.6V (?V~?V)	2.0V	39.3A	57W	62.8W	85° C
Athlon XP-2400+ (6-8-1 - 2.0GHz)	1.6V (?V~?V)	2.0V	40.8A	59.3W	65.3W	85° C
Athlon XP-2400+ (6-8-1 - 2.0GHz)	1.65V (?V~?V)	2.0V	41.4A	62W	68.3W	85° C
Athlon XP-2600+ (6-8-1 - 2.13GHz)	1.65V (?V~?V)	2.0V	41.4A	62W	68.3W	85° C
Athlon XP-2600+ (6-8-1 - 2.08GHz)	1.65V (?V~?V)	2.0V	41.4A	62W	68.3W	85° C
Athlon XP-2700+ (6-8-1 - 2.17GHz)	1.65V (?V~?V)	2.0V	41.4A	62W	68.3W	85° C
Athlon XP-2800+ (6-8-1 - 2.25GHz)	1.65V (?V~?V)	2.0V	?A	?W	?W	?° C
Athlon XP (Thorton) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Athlon XP-2000+ (6-A-0 - 1.67GHz)	1.6V (?V~?V)	2.0V	37.7A	47.4W	60.3W	90° C
Athlon XP-2200+ (6-A-0 - 1.8GHz)	1.6V (?V~?V)	2.0V	39.3A	49.4W	62.8W	85° C
Athlon XP-2400+ (6-A-0 - 2.0GHz)	1.65V (?V~?V)	2.0V	41.4A	53.7W	68.3W	85° C
Athlon XP (Barton) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Athlon XP-2500+ (6-A-0 - 1.83GHz)	1.65V (?V~?V)	2.0V	41.4A	53.7W	68.3W	85° C
Athlon XP-2600+ (6-A-0 - 1.92GHz)	1.65V (?V~?V)	2.0V	41.4A	53.7W	68.3W	85° C
Athlon XP-2800+ (6-A-0 - 2.08GHz)	1.65V (?V~?V)	2.0V	41.4A	53.7W	68.3W	85° C
Athlon XP-3000+ (6-A-0 - 2.16GHz)	1.65V (?V~?V)	2.0V	45A	58.4W	74.3W	85° C
Athlon XP-3000+ (6-A-0 - 2.1GHz)	1.65V (?V~?V)	2.0V	41.4A	53.7W	68.3W	85° C
Athlon XP-3200+ (6-A-0 - 2.2GHz)	1.65V (?V~?V)	2.0V	46.5A	60.4W	76.8W	85° C

AMD Sempron
Sempron (Thoroughbred) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Sempron-2200+ (6-8-1 - 1.5GHz)	1.6V (?V~?V)	?V	38.75A	55.9W	62W	90° C
Sempron-2300+ (6-8-1 - 1.58GHz)	1.6V (?V~?V)	?V	38.75A	55.9W	62W	90° C
Sempron-2400+ (6-8-1 - 1.66GHz)	1.6V (?V~?V)	?V	38.75A	55.9W	62W	90° C
Sempron-2500+ (6-8-1 - 1.75GHz)	1.6V (?V~?V)	?V	38.75A	55.9W	62W	90° C
Sempron-2600+ (6-8-1 - 1.83GHz)	1.6V (?V~?V)	?V	38.75A	55.9W	62W	90° C
Sempron-2800+ (6-8-1 - 2.0GHz)	1.6V (?V~?V)	?V	38.75A	55.9W	62W	90° C
Sempron (Thorton) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Sempron-2200+ (6-A-0 - 1.5GHz)	1.6V (?V~?V)	?V	38.75A	49.4W	62W	90° C
Sempron-2800+ (6-A-0 - 2.0GHz)	1.6V (?V~?V)	?V	38.75A	49.4W	62W	90° C
Sempron (Barton) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Sempron-3000+ (6-A-0 - 2.0GHz - 512KB)	1.6V (?V~?V)	?V	38.75A	49.4W	62W	90° C

AMD Duron
Duron (Spitfire) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Duron-550	1.5V (1.4V~1.6V)	2.1V	15.8A	18.9W	21.1W	90° C
Duron-600	1.5V (1.4V~1.6V)	2.1V	17A	20.4W	22.7W	90° C
Duron-600	1.6V (1.5V~1.7V)	2.1V	17.1A	24.5W	27.4W	90° C
Duron-650	1.5V (1.4V~1.6V)	2.1V	18.2A	21.8W	24.3W	90° C
Duron-650	1.6V (1.5V~1.7V)	2.1V	18.4A	26.4W	29.4W	90° C
Duron-700	1.5V (1.4V~1.6V)	2.1V	19.2A	22.9W	25.5W	90° C
Duron-700	1.6V (1.5V~1.7V)	2.1V	19.6A	28.2W	31.4W	90° C
Duron-750	1.6V (1.5V~1.7V)	2.1V	21.9A	28W	31.2W	90° C
Duron-750	1.6V (1.5V~1.7V)	2.1V	20.9A	30W	33.4W	90° C
Duron-800	1.6V (1.5V~1.7V)	2.1V	22.1A	31.8W	35.4W	90° C
Duron-850	1.6V (1.5V~1.7V)	2.1V	23.4A	33.6W	37.4W	90° C
Duron-900	1.6V (1.5V~1.7V)	2.1V	24.7A	35.4W	39.5W	90° C
Duron-950	1.6V (1.5V~1.7V)	2.1V	25.9A	37.2W	41.5W	90° C
Duron (Morgan) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Duron-900	1.75V (1.7V~1.8V)	?V	24.4A	39.2W	42.7W	90° C
Duron-950	1.75V (1.7V~1.8V)	?V	25.4A	40.8W	44.4W	90° C
Duron-1.0G	1.75V (1.7V~1.8V)	?V	26.3A	42.4W	46.1W	90° C
Duron-1.1G	1.75V (1.7V~1.8V)	?V	28.7A	46.2W	50.3W	90° C
Duron-1.2G	1.75V (1.7V~1.8V)	?V	31.3A	50.3W	54.7W	90° C
Duron-1.3G	1.75V (1.7V~1.8V)	?V	34.3A	55.2W	60W	90° C
Duron (Applebred) Socket A	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
Duron-1.4G	1.5V (?V~?V)	?V	38A	45.5W	57W	85° C
Duron-1.6G	1.5V (?V~?V)	?V	38A	48W	57W	85° C
Duron-1.8G	1.5V (?V~?V)	?V	38A	53W	57W	85° C

Athlon/Duron Notes:

For 3.3V SRAMs, the voltage upper limit is 4.0V. For 2.5V SRAMs, the upper limit is 3.0V.
The old Voltage Regulation App Note for Athlon Classic chips (early K7) indicated that motherboards should be designed with a maximum 35A current draw in mind to prepare for a "next generation of processors from AMD". The App Note went on to give examples of a theoretical chip running at 1.6V and drawing 30 amps as well as one at the design max of 35 amps.
Power numbers (typical and max wattage) include the 512KB L2 cache running at max case current conditions.
The K7 is made on a 0.25µ process; the K75 is made on a 0.18µ process.
The Core Voltage Upper Limit on the Athlon has been increased from 1.9V (0.3v over nominal) to 2.1V (0.5v over nominal) for both the K7 (model 1) and K75 (model 2) chips.
Note that the wattage and amperage numbers for all model 2 (K75) Athlons have been revised. Both dropped.
With the addition of the 1.2GHz Athlon and 800MHz Duron chips, voltage, wattage, and amperage numbers for the PGA Athlon and Duron have changed (they're now higher). I'm not sure if this is due to a core stepping change or is just a re-evaluation of the chip's electricals by AMD. Both old and new chip specs are still listed.
Athlons running on a 133MHz bus but at the same core speed as their 100MHz counterparts have the same thermal specifications.
The 550MHz Duron and 650MHz Thunderbird chips do not exist. Apparently a few 700MHz Thunderbirds escaped from AMD, but the chip was never officially launched.
Max Case Temp for the PGA Athlons and Durons is really Max Die Temp.
For the Palomino, Thoroughbred, Barton, and Thorton Athlons and the Morgan Durons the Maximum Power Dissipation is "maximum sustained power dissipated while executing publicly-available software or instruction sequences under normal system operation at nominal VCC_CORE. Thermal solutions must monitor the processor temperature to prevent the processor from exceeding its maximum die temperature."
Note that typical wattage numbers for the Morgan Duron have increased (Jan 2002).

AMD mobile Duron
mobile Duron (Spitfire)	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Die Temp.
mDuron-600	1.4V (?V~?V)	?V	?A	?W	?W	?° C
mDuron-700	1.4V (?V~?V)	?V	?A	?W	?W	?° C
mDuron-800	1.4V (?V~?V)	?V	?A	?W	?W	?° C
mDuron-900	1.4V (?V~?V)	?V	?A	?W	?W	?° C
mobile Duron (Morgan)	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Die Temp.
mDuron-800	1.5V (?V~?V)	?V	16.7A	?W	25W	95° C
mDuron-850	1.5V (?V~?V)	?V	16.7A	?W	25W	95° C
mDuron-900	1.45V (?V~?V)	?V	17.2A	?W	25W	95° C
mDuron-950	1.45V (?V~?V)	?V	17.2A	?W	25W	95° C
mDuron-1000	1.4V (?V~?V)	?V	17.9A	?W	25W	95° C

AMD mobile Athlon 4
mobile Athlon 4 (Palomino)	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Die Temp.
mAthlon 4-850	1.4V (?V~?V)	?V	15.71A	?W	22W	95° C
mAthlon 4-900	1.4V (?V~?V)	?V	17.14A	?W	24W	95° C
mAthlon 4-950	1.4V (?V~?V)	?V	17.14A	?W	24W	95° C
mAthlon 4-1.0G	1.4V (?V~?V)	?V	17.9A	?W	25W	95° C
mAthlon 4-1.1G	1.4V (?V~?V)	?V	17.9A	?W	25W	95° C
mAthlon 4-1.2G	1.35V (?V~?V)	?V	18.5A	?W	25W	95° C
mAthlon 4-1400+ (1.?GHz)	?V (?V~?V)	?V	?A	?W	?W	?° C
mAthlon 4-1500+ (1.3GHz)	?V (?V~?V)	?V	?A	?W	?W	?° C
mAthlon 4-1600+ (1.33GHz)	?V (?V~?V)	?V	?A	?W	?W	?° C
mobile Athlon 4 (Thoroughbred)	Core Voltage	Core Voltage Upper Limit	Maximum Core Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Die Temp.
mAthlon 4-1600+ (1.4GHz)	?V (?V~?V)	?V	?A	?W	35W	?° C
mAthlon 4-1700+ (1.46GHz)	?V (?V~?V)	?V	?A	?W	35W	?° C
mAthlon XP-2200+ (1.8GHz)	?V (?V~?V)	?V	?A	?W	35W	?° C

Mobile Duron/Athlon 4 Notes:

Maximum Power Dissipation is "maximum sustained power dissipated while executing publicly-available software or instruction sequences under normal system operation at nominal VCC_CORE."
The "Morgan" Duron and Athlon 4 can step down it's core speed (down 300MHz, depending on the BIOS implementation) along with its core voltage (down to 1.2v) in order to save power in notebook computers. See the datasheet for more information.
Amperage draw and power dissipation numbers have been revised upwards for the Morgan Duron processor (Dec 2001).

Cyrix/IBM

Cyrix 5x86
Cyrix 5x86 (M9, M1sc)	Voltage	Abs. Max. Voltage	Typical Amperage	Maximum Amperage	Maximum Power Dissipation	Max. Case Temp.
5x86-100GP (168-pin PGA)	3.45V (3.3V~3.6V)	?V	0.9A	1.2A	4.32W	85° C
5x86-100QP (208-pin PQFP)	3.45V (3.3V~3.6V)	?V	0.9A	1.2A	4.32W	85° C
5x86-120GP (168-pin PGA)	3.45V (3.3V~3.6V)	?V	1A	1.4A	5.04W	85° C
5x86-120QP (208-pin PQFP)	3.45V (3.3V~3.6V)	?V	1A	1.4A	5.04W	85° C

5x86 Notes:

Maximum power dissipation was calculated from P=Vcc*Icc.

Cyrix/IBM/SGS-Thomson 6x86
6x86 (M1)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Maximum Power Dissipation	Max. Case Temp.
M1-PR90+ (80MHz)	3.3 (3.15V~3.6V)	4.0V	3.9A	4.7A	16.92W	70° C
M1-PR120+ (100MHz)	3.3 (3.15V~3.6V)	4.0V	4.5A	5.4A	19.44W	70° C
6x86 (M1R)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Maximum Power Dissipation	Max. Case Temp.
M1R-PR133+ (110MHz)	3.3 (3.15V~3.6V)	4.0V	4.8A	5.8A	20.88W	70° C
M1R-PR150+ (120MHz)	3.3 (3.15V~3.6V)	4.0V	5.1A	6.1A	21.96W	70° C
M1R-PR150+ (120MHz)	3.52 (3.15V~3.6V)	4.0V	?A	?A	?W	70° C
M1R-PR166+ (133MHz)	3.3 (3.15V~3.6V)	4.0V	5.5A	6.6A	23.76W	70° C
M1R-PR166+ (133MHz)	3.52 (3.15V~3.6V)	4.0V	?A	?A	?W	70° C
M1R-PR200+ (150MHz)	3.52 (3.15V~3.6V)	4.0V	5.9A	7A	25.2W	70° C

M1 Notes:

The Absolute Maximum Voltage is the highest voltage the chips can take for a short period of time. Extended use of the processor at or near these voltages will cause permanent damage to the chip. Reliable operation of the chip outside its nominal voltage range is not guaranteed.
Typical amperage was measured at 3.3v.
Maximum amperage was measured at 3.3v.

Cyrix/IBM 6x86L
6x86L (M1L)	Core Voltage	Abs. Max. Core Voltage	I/O Voltage	Abs. Max. I/O Voltage	Typ. Core Amp.	Max. Core Amp.	Typ. I/O Amp.	Max. I/O Amp.	Max. Power Diss.	Max. Case Temp.
M1L-PR120+ (100MHz)	2.8V (2.63V~2.97V)	3.3V	3.3V (3.15V~3.45V)	4.0V	3.9A	4.7A	0.06A	0.075A	11.15W	70° C
M1L-PR133+ (110MHz)	2.8V (2.63V~2.97V)	3.3V	3.3V (3.15V~3.45V)	4.0V	4.1A	5.0A	0.065A	0.08A	?W	70° C
M1L-PR150+ (120MHz)	2.8V (2.63V~2.97V)	3.3V	3.3V (3.15V~3.45V)	4.0V	4.4A	5.3A	0.07A	0.085A	12.63W	70° C
M1L-PR166+ (133MHz)	2.8V (2.63V~2.97V)	3.3V	3.3V (3.15V~3.45V)	4.0V	4.7A	5.6A	0.075A	0.09A	13.6W	70° C
M1L-PR200+ (150MHz)	2.8V (2.63V~2.97V)	3.3V	3.3V (3.15V~3.45V)	4.0V	5.0A	6.0A	0.085A	0.1A	14.85W	70° C

M1L Notes:

The Absolute Maximum Voltages are the highest voltages the chips can take for a short period of time. Extended use of the processor at or near these voltages will cause permanent damage to the chip. Reliable operation of the chip outside its nominal voltage range is not guaranteed.
Typical amperages were measured at nominal voltages.
Maximum amperages were measured at maximum voltages.
The maximum power dissipation numbers were taken from the IBM (not Cyrix) datasheets. Cyrix does not have wattage numbers for the 6x86L chips. Maximum power dissipation was measured at 3.3v (this puts the core at absolute maximum voltage) while running Landmark Speed200 v2.0.
IBM states that typical power dissipation numbers are about 15% less than the maximum power dissipation.

Cyrix 6x86MX/M-II
6x86MX (M2)	Core Voltage	Abs. Max. Core Voltage	I/O Voltage	Abs. Max. I/O Voltage	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
M2-PR166 (133MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	6.238A	0.1A	10.6W	17.6W	70° C
M2-PR166 (150MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	6.758A	0.1A	11.4W	18.9W	70° C
M2-PR200 (150MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	6.758A	0.1A	11.4W	18.9W	70° C
M2-PR200 (166MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.195A	0.1A	12.1W	20.2W	70° C
M2-PR200 (166MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	6.6A	0.1A	11.5W	19.1W	70° C
M2-PR233 (188MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.778A	0.1A	13.1W	21.8W	70° C
M2-PR233 (188MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.48A	0.1A	13.1W	21.7W	70° C
M2-PR233 (200MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	8.07A	0.1A	13.7W	22.9W	70° C
M2-PR233 (200MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.7A	0.1A	13.5W	22.3W	70° C
M2-PR266 (208MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.92A	0.1A	13.8W	23W	70° C
M-II (M2)	Core Voltage	Abs. Max. Core Voltage	I/O Voltage	Abs. Max. I/O Voltage	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
MII-300 (225MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	9.2A	0.1A	15.7W	26.1W	70° C
MII-300 (225MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	8.58A	0.1A	15.0W	24.9W	70° C
MII-300GP (225MHz - 0.25µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.48A	0.1A	12.5W	20.7W	70° C
MII-300 (233MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	9.5A	0.1A	16.2W	27.0W	70° C
MII-300 (233MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	8.8A	0.1A	15.4W	25.5W	70° C
MII-300GP (233MHz - 0.25µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.74A	0.1A	13W	21.6W	70° C
MII-333 (250MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	9.5A	0.1A	16.6W	27.6W	70° C
MII-333GP (250MHz - 0.25µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	8.35A	0.1A	14W	23.3W	70° C
MII-333 (250MHz - 0.18µ)	2.2V (2.1V~2.3V)	3.3V	3.3V (3.135V~3.465V)	4.0V	3.84A	0.1A	7.7W	8.8W	70° C
MII-366GP (250MHz - 0.25µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	8.35A	0.1A	14W	23.3W	70° C
MII-366 (250MHz - 0.18µ)	2.2V (2.1V~2.3V)	3.3V	3.3V (3.135V~3.465V)	4.0V	3.84A	0.1A	7.7W	8.8W	70° C
MII-400 (285MHz - 0.18µ)	2.2V (2.1V~2.3V)	3.3V	3.3V (3.135V~3.465V)	4.0V	5.52A	0.1A	11.1W	12.5W	70° C
MII-433 (300MHz - 0.18µ)	2.2V (2.1V~2.3V)	3.3V	3.3V (3.135V~3.465V)	4.0V	6.08A	0.1A	12W	13.7W	70° C

M2 Notes:

The Absolute Maximum Voltages are the highest voltages the chips can take for a short period of time. Extended use of the processor at or near these voltages will cause permanent damage to the chip. Reliable operation of the chip outside its nominal voltage range is not guaranteed.
Maximum amperages were determined using the worst-case instruction mix at maximum voltages.
Maximum power dissipation was determined using the worst-case instruction mix at typical voltages.

Cyrix mobile M-II
mobile M-II (M2)	Core Voltage	Abs. Max. Core Voltage	I/O Voltage	Abs. Max. I/O Voltage	Maximum Core Amperage	Maximum I/O Amperage	Maximum Power Dissipation	Max. Case Temp.
mMII-266 (200MHz)	2.2V (2.1V~2.3V)	3.3V	3.3V (3.135V~3.465V)	4.0V	4.56A	0.1A	10.3W	85° C
mMII-300 (233MHz)	2.2V (2.1V~2.3V)	3.3V	3.3V (3.135V~3.465V)	4.0V	5.04A	0.1A	11.4W	85° C
mMII-333 (266MHz)	2.2V (2.1V~2.3V)	3.3V	3.3V (3.135V~3.465V)	4.0V	5.65A	0.1A	12.7W	85° C
mMII-350 (270MHz)	2.2V (2.1V~2.3V)	3.3V	3.3V (3.135V~3.465V)	4.0V	5.76A	0.1A	13W	85° C

Mobile M2 Notes:

The Absolute Maximum Voltages are the highest voltages the chips can take for a short period of time. Extended use of the processor at or near these voltages will cause permanent damage to the chip. Reliable operation of the chip outside its nominal voltage range is not guaranteed.
Maximum amperages were determined using the worst-case instruction mix at maximum voltages.
Maximum power dissipation was determined using the worst-case instruction mix at typical voltages.

IBM

IBM 6x86MX
6x86MX (M2)	Core Voltage	Abs. Max. Core Voltage	I/O Voltage	Abs. Max. I/O Voltage	Maximum Core Amperage	Maximum I/O Amperage	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
M2-PR166 (133MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	6.238A	0.1A	10.6W	17.6W	70° C
M2-PR166 (150MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	6.758A	0.1A	11.4W	18.9W	70° C
M2-PR200 (150MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	6.758A	0.1A	11.4W	18.9W	70° C
M2-PR200 (166MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	6.6A	0.1A	11.5W	19.1W	70° C
M2-PR200 (166MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	6.7A	0.1A	11.5W	18.1W	70° C
M2-PR233 (188MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.48A	0.1A	13.1W	21.7W	70° C
M2-PR233 (188MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.3A	0.1A	13.1W	19.7W	70° C
M2-PR233 (200MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.7A	0.1A	13.5W	22.3W	70° C
M2-PR233 (200MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.6A	0.1A	13.5W	20.5W	70° C
M2-PR266 (208MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.92A	0.1A	13.8W	23.0W	70° C
M2-PR266 (208MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	7.9A	0.1A	13.8W	21.3W	70° C
M2-PR266 (225MHz - 0.35µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	8.58A	0.1A	15.0W	24.9W	70° C
M2-PR266 (225MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	8.3A	0.1A	15.0W	22.3W	70° C
M2-PR300 (233MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	8.8A	0.1A	15.4W	25.5W	70° C
M2-PR300 (233MHz - 0.25µ-G)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	8.5A	0.1A	15.4W	22.8W	70° C
M2-PR300 (233MHz - 0.25µ-H)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	10.0A	0.1A	16.9W	27W	70° C
M2-PR333 (250MHz - 0.30µ)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	9.5A	0.1A	16.6W	27.6W	70° C
M2-PR333 (250MHz - 0.25µ-G)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	8.9A	0.1A	16.6W	23.9W	70° C
M2-PR333 (250MHz - 0.25µ-H)	2.9V (2.8V~3.0V)	3.3V	3.3V (3.135V~3.465V)	4.0V	10.3A	0.1A	18.3W	27.9W	70° C

M2 Notes:

The Absolute Maximum Voltages are the highest voltages the chips can take for a short period of time. Extended use of the processor at or near these voltages will cause permanent damage to the chip. Reliable operation of the chip outside its nominal voltage range is not guaranteed.
Maxium amperages were determined using the worst-case instruction mix at maximum voltages.
Maximum power dissipation was determined using the worst-case instruction mix at typical voltages.
The 225MHz chips were never produced.

IDT

IDT Winchip
Winchip (C6)	Voltage	Abs. Max. Voltage	I/O Voltage	Max. I/O Voltage	Max. Amp.	Maximum Power Consumption	Max. Case Temp.
Winchip-180	3.3 (3.135V~3.6V)	4.0V	--	--	?A	9.5W	70° C
Winchip-180	3.52 (3.45V~3.6V)	4.0V	--	--	?A	11.5W	70° C
Winchip-200	3.3 (3.135V~3.6V)	4.0V	--	--	?A	10.5W	70° C
Winchip-200	3.52 (3.45V~3.6V)	4.0V	--	--	?A	13W	70° C
Winchip-225	3.3 (3.135V~3.6V)	4.0V	--	--	?A	11.6W	70° C
Winchip-225	3.52 (3.45V~3.6V)	4.0V	--	--	?A	14.8W	70° C
Winchip-240	3.3 (3.135V~3.6V)	4.0V	--	--	?A	12.5W	70° C
Winchip-240	3.52 (3.45V~3.6V)	4.0V	--	--	?A	15.8W	70° C
Winchip-2 (C6+)	Voltage	Abs. Max. Voltage	I/O Voltage	Max. I/O Voltage	Max. Amp.	Maximum Power Consumption	Max. Case Temp.
Winchip-2-200	3.3 (3.135V~3.6V)	4.0V	--	--	?A	8.8W	70° C
Winchip-2-200	3.52 (3.45V~3.6V)	4.0V	--	--	?A	12W	70° C
Winchip-2-225	3.3 (3.135V~3.6V)	4.0V	--	--	?A	10W	70° C
Winchip-2-225	3.52 (3.45V~3.6V)	4.0V	--	--	?A	13W	70° C
Winchip-2-240	3.3 (3.135V~3.6V)	4.0V	--	--	?A	10.5W	70° C
Winchip-2-240	3.52 (3.45V~3.6V)	4.0V	--	--	?A	14W	70° C
Winchip-2-250	3.3 (3.135V~3.6V)	4.0V	--	--	?A	10.9W	70° C
Winchip-2-250	3.52 (3.45V~3.6V)	4.0V	--	--	?A	15W	70° C
Winchip-2-266	3.3 (3.135V~3.6V)	4.0V	--	--	?A	11.6W	70° C
Winchip-2-266	3.52 (3.45V~3.6V)	4.0V	--	--	?A	16W	70° C
Winchip-2A (C6-A)	Voltage	Abs. Max. Voltage	I/O Voltage	Max. I/O Voltage	Max. Amp.	Maximum Power Consumption	Max. Case Temp.
Winchip-2A-200 (200MHz)	3.3 (3.135V~3.6V)	4.0V	--	--	?A	8.8W	70° C
Winchip-2A-200 (200MHz)	3.52 (3.45V~3.6V)	4.0V	--	--	?A	12W	70° C
Winchip-2A-233 (233MHz)	3.3 (3.135V~3.6V)	4.0V	--	--	?A	10W	70° C
Winchip-2A-233 (233MHz)	3.52 (3.45V~3.6V)	4.0V	--	--	?A	13W	70° C
Winchip-2A-266 (233MHz)	3.3 (3.135V~3.6V)	4.0V	--	--	?A	10.5W	70° C
Winchip-2A-266 (233MHz)	3.52 (3.45V~3.6V)	4.0V	--	--	?A	14W	70° C
Winchip-2A-300 (250MHz)	3.3 (3.135V~3.6V)	4.0V	--	--	?A	11.8W	70° C
Winchip-2A-300 (250MHz)	3.52 (3.45V~3.6V)	4.0V	--	--	?A	16W	70° C
Winchip-2B (C6-B)	Voltage	Abs. Max. Voltage	I/O Voltage	Max. I/O Voltage	Max. Amp.	Maximum Power Consumption	Max. Case Temp.
Winchip-2B-200 (200MHz)	2.8V (2.7V~2.9V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	6.3W	70° C
Winchip-2B-233 (200MHz)	2.8V (2.7V~2.9V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	6.3W	70° C
Winchip-3 (C6-2L)	Voltage	Abs. Max. Voltage	I/O Voltage	Max. I/O Voltage	Max. Amp.	Maximum Power Consumption	Max. Case Temp.
Winchip-3-266 (233MHz)	2.8V (2.7V~2.9V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	8.4W	70° C
Winchip-3-300 (233MHz)	2.8V (2.7V~2.9V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	8.4W	70° C
Winchip-3-300 (266MHz)	2.8V (2.7V~2.9V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	9.3W	70° C
Winchip-3-333 (250MHz)	2.8V (2.7V~2.9V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	8.8W	70° C
Winchip-3-333 (266MHz)	2.8V (2.7V~2.9V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	9.3W	70° C
mobile Winchip-3 (mobile C6-2L)	Voltage	Abs. Max. Voltage	I/O Voltage	Max. I/O Voltage	Max. Amp.	Maximum Power Consumption	Max. Case Temp.
mWinchip-3-233 (200MHz)	2.2V (2.1V~2.3V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	4.3W	70° C
mWinchip-3-266 (233MHz)	2.2V (2.1V~2.3V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	4.5W	70° C
mWinchip-3-300 (233MHz)	2.2V (2.1V~2.3V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	4.5W	70° C
mWinchip-3-333 (250MHz)	2.2V (2.1V~2.3V)	4.0V	3.3V (3.135V~3.465V)	?V	?A	4.8W	70° C

C6 Notes:

The Absolute Maximum Voltage is the highest voltage the chips can take for a short period of time. Extended use of the processor at or near these voltages will cause permanent damage to the chip. Reliable operation of the chip outside its nominal voltage range is not guaranteed.
The Winchip-2A 233 runs at 233MHz on a 66MHz bus; the 266 runs at 233MHz on a 100MHz bus (it uses an unusual 2.33x multiplier).
The Winchip-2B 200 runs at 200MHz on a 66MHz bus; the 233 runs at 200MHz on a 100MHz bus.
The Winchip-3 CPUs run at 233/66, 233/100 (2.33x multiplier), 266/66, 250/100, and 266/100 (2.66x multiplier).
The mobile Winchip-3 CPUs run at 200/66, 233/66, 233/100 (2.33x multiplier), and 250/100.

Intel

Intel 386
386SX (P9)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i386SX-16	5V	?V	0.15A	0.22A	0.75W	1.1W	?° C
i386SX-20	5V	?V	0.18A	0.25A	0.9W	1.25W	?° C
i386SX-25	5V	?V	0.21A	0.28A	1.05W	1.4W	?° C
i386SX-33	5V	?V	0.29A	0.38A	1.45W	1.9W	?° C
386DX ( ? )	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i386DX-20	5V	?V	0.2A	0.26A	1W	1.3W	?° C
i386DX-25	5V	?V	0.24A	0.32A	1.2W	1.6W	?° C
i386DX-33	5V	?V	0.3A	0.39A	1.5W	1.95W	?° C

i386 Notes:

The 386 processor power numbers come from the embedded processor notes, and not from the original datasheets. The actual numbers for the chips sold in the retail market may vary slightly, but not by very much.
Typical power dissipation was average value measured at typical voltage running typical applications, but is highly dependent on specific system configuration.
Maximum active power dissipation is measured at typical voltages and worst-case instruction mix.
The 386SX has a 16-bit external bus. The 386DX has a 32-bit external bus.

Intel 486 (non-SL enhanced)
486SX (P23)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i486SX-16 (168-pin PGA)	5V	?V	0.34A	0.45A	1.7W	2.25W	85° C
i486SX-16 (208-pin PQFP)	3.3V	?V	0.28A	0.45A	1.4W	2.25W	85° C
i486SX-20 (168-pin PGA)	5V	?V	0.45A	0.53A	2.25W	2.65W	85° C
i486SX-20 (208-pin PQFP)	3.3V	?V	0.34A	0.5A	1.7W	2.5W	85° C
i486SX-25 (168-pin PGA)	5V	?V	0.55A	0.63A	2.75W	3.15W	85° C
i486SX-25 (208-pin PQFP)	3.3V	?V	0.43A	0.56A	2.15W	2.8W	85° C
i486SX-33 (168-pin PGA)	5V	?V	0.59A	0.685A	2.95W	3.42W	85° C
i486SX-33 (208-pin PQFP)	3.3V	?V	0.59A	0.685A	2.95W	3.42W	85° C
486DX (P4)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i486DX-25 (168-pin PGA)	5V	?V	0.55A	0.7A	2.75W	3.5W	85° C
i486DX-33 (168-pin PGA)	5V	?V	0.7A	0.9A	3.5W	4.5W	85° C
i486DX-50 (168-pin PGA)	5V	?V	0.8A	1.0A	4W	5W	85° C
486DX2 (P24)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i486DX2-50 (168-pin PGA)	5V	?V	0.775A	0.95A	3.87W	4.75W	85° C
i486DX2-66 (168-pin PGA)	5V	?V	0.975A	1.2A	4.87W	6W	85° C

i486 Notes:

The 486 processor power numbers come from the embedded processor notes, and not from the original datasheets. The actual numbers for the chips sold in the retail market may vary slightly, but not by very much.
Typical power dissipation was average value measured at typical voltage running typical applications, but is highly dependent on specific system configuration.
Maximum active power dissipation is measured at typical voltages and worst-case instruction mix.
The 486DX has a floating point unit (FPU) while the 486SX does not. Some of the earliest 486SX were 486DX chips with their FPUs disabled, but most were manufactured without the FPU.
All surface-mounted (QFP) Intel 486 chips run at 3.3 volts. All socketed (168-pin PGA) Intel 486 chips run at 5 volts (except for the i486DX4 chips).

Intel 486 (SL enhanced)
486SX (P23S)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i486SX-25 (168-pin PGA)	5V	?V	0.43A	0.56A	2.15W	2.8W	85° C
i486SX-25 (208-pin PQFP)	3.3V	?V	0.25A	0.315A	0.82W	1.04W	85° C
i486SX-33 (168-pin PGA)	5V	?V	0.59A	0.685A	2.95W	3.42W	85° C
i486SX-33 (208-pin PQFP)	3.3V	?V	0.3A	0.415A	0.99W	1.37W	85° C
i486SX2 ( ? )	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i486SX2-50 (168-pin PGA)	5V	?V	0.73A	0.855A	3.65W	4.27W	85° C
486DX (P4S)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i486DX-33 (168-pin PGA)	5V	?V	0.5A	0.63A	2.5W	?W	85° C
i486DX-33 (208-pin PQFP)	3.3V	?V	0.33A	0.415A	1.09W	1.37W	85° C
i486DX-50 (168-pin PGA)	5V	?V	0.775A	1.0A	3.87W	5W	85° C
486DX2 (P24S)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i486DX2-40 (208-pin PQFP)	3.3V	?V	0.375A	0.45A	1.23W	1.5W	85° C
i486DX2-50 (168-pin PGA)	5V	?V	0.775A	0.95A	3.87W	4.75W	85° C
i486DX2-50 (208-pin PQFP)	3.3V	?V	0.46A	0.55A	1.51W	1.81W	85° C
i486DX2-66 (168-pin PGA)	5V	?V	0.975A	1.2A	4.87W	6W	85° C

i486 SL-enhanced Notes:

The 486 processor power numbers come from the embedded processor notes, and not from the original datasheets. The actual numbers for the chips sold in the retail market may vary slightly, but not by very much.
Typical power dissipation was average value measured at typical voltage running typical applications, but is highly dependent on specific system configuration.
Maximum active power dissipation is measured at typical voltages and worst-case instruction mix.
The 486DX has a floating point unit (FPU) while the 486SX does not. Some of the earliest 486SX were 486DX chips with their FPUs disabled, but most were manufactured without the FPU.
All surface-mounted (QFP) Intel 486 chips run at 3.3 volts. All socketed (168-pin PGA) Intel 486 chips run at 5 volts (except for the i486DX4 chips).

Intel 486DX2 (Write-Back Enhanced)
486DX2 (P24D)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i486DX2-40 (208-pin PQFP)	3.3V	?V	0.309A	0.475A	1.02W	1.56W	85° C
i486DX2-50 (168-pin PGA)	5V	?V	0.659A	0.928A	3.29W	4.64W	85° C
i486DX2-50 (208-pin PQFP)	3.3V	?V	0.384A	0.581A	1.26W	1.91W	85° C
i486DX2-66 (168-pin PGA)	5V	?V	0.872A	1.287A	4.36W	6.43W	85° C

P24D Notes:

The P24D processor power numbers come from the embedded processor notes, and not from the original datasheets. The actual numbers for the chips sold in the retail market may vary slightly, but not by very much.
Typical power dissipation was average value measured at typical voltage running typical applications, but is highly dependent on specific system configuration.
Maximum active power dissipation is measured at typical voltages and worst-case instruction mix.
All surface-mounted (QFP) Intel 486 chips run at 3.3 volts. All socketed (168-pin PGA) Intel 486 chips run at 5 volts (except for the i486DX4 chips).

Intel 486DX4
486DX4 (P24C)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
i486DX4-75 (168-pin PGA)	3.3V	?V	0.825A	0.975A	2.72W	3.21W	85° C
i486DX4-100 (168-pin PGA)	3.3V	?V	1.075A	1.3A	3.54W	4.29W	85° C

P24C Notes:

The P24C processor power numbers come from the embedded processor notes, and not from the original datasheets. The actual numbers for the chips sold in the retail market may vary slightly, but not by very much.
Typical power dissipation was average value measured at typical voltage running typical applications, but is highly dependent on specific system configuration.
Maximum active power dissipation is measured at typical voltages and worst-case instruction mix.
All surface-mounted (QFP) Intel 486 chips run at 3.3 volts. All socketed (168-pin PGA) Intel 486 chips run at 5 volts (except for the i486DX4 chips).

Intel 486 OverDrive
486DX OverDrive (P23T)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
iODPDX2-50 (169-pin PGA)	5V	6.5V	0.775A	0.95A	3.75W	4.75W	95° C
iODPDX2-66 (169-pin PGA)	5V	6.5V	0.975A	1.2A	4.875W	6W	95° C
iODPDX4-75 (169-pin PGA)	5V	6.5V	0.835A	1.2A	4.175W	6W	95° C
iODPDX4-100 (169-pin PGA)	5V	6.5V	1.085A	1.55A	5.425W	7.75W	95° C
486DX OverDrive (P4T)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
iODPRDX2-50 (168-pin PGA)	5V	6.5V	0.775A	0.95A	3.75W	4.75W	95° C
iODPRDX2-66 (168-pin PGA)	5V	6.5V	0.975A	1.2A	4.875W	6W	95° C
iODPRDX4-75 (168-pin PGA)	5V	6.5V	0.835A	1.2A	4.175W	6W	95° C
iODPRDX4-100 (168-pin PGA)	5V	6.5V	1.085A	1.55A	5.425W	7.75W	95° C

486 OverDrive Notes:

The 486 OverDrive processor power numbers are preliminary numbers and come from the Intel OverDrive Processors datasheet (290436-006).
Typical and maximum power dissipation numbers were calculated from P=Vcc*Icc.

Intel Pentium for 486
Pentium for 486 (P24T)	Voltage	Abs. Max. Voltage	Max. Amp.	Maximum Power Dissipation	Max. Case Temp.
P24T-63	5V (4.75V~5.25V)	6.5V	2.2A	11W	55° C
P24T-83	5V (4.75V~5.25V)	6.5V	2.8A	14W	55° C

P24T Notes:

Maximum amperage was measured at 5.3v and worst-case instruction mix.
Maximum power dissipation was calculated from P=Vcc*Icc.

Intel Pentium
Pentium (P5)	Voltage	Abs. Max. Voltage	Typ. Amp.	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
P5-60	5V (4.75V~5.25V)	6.5V	2.37A	2.92A	11.9W	14.6W	80° C
P5-66	5V (4.75V~5.4V)	6.5V	2.6A	3.2A	13.0W	16W	70° C

P5 Notes:

Maximum amperages is the worst case average Icc for a mix of test patterns.
Typical power dissipation was measured at normal operating voltages running typical applications.
Maximum power dissipation was measured at normal operating voltages and under worst-case applications mix.
There is some variance among the P5 chips regarding voltage range and maximum case temperature. This can vary from sSpec to sSpec. See the Pentium 60/66 Specification Update for details.

Intel Pentium OverDrive
Pentium OverDrive (P5T)	Voltage	Abs. Max. Voltage	Max. Amp.	Maximum Power Dissipation	Max. Case Temp.
P5T-120	5V (4.75V~5.25V)	6.5V	2.5A	12.5W	70° C
P5T-133	5V (4.75V~5.25V)	6.5V	2.7A	13.5W	70° C

P5T Notes:

Maximum amperages is the worst case average Icc for a mix of test patterns.
Maximum power dissipation was calculated from P=Vcc*Icc.

Intel Pentium Classic
Pentium Classic (P54C)	Voltage	Abs. Max. Voltage	Max. Amp.	Typical Power Dissipation	Maximum Power Dissipation	Max. Case Temp.
P54C-75	STD	4.6V	2.65A	3.0W	8W	70° C
P54C